Feliway 3× 48mL Diffuser Refill 30 Day - Constant Calming and Comfort for Cats

This refill includes three 48mL vial but does not include the diffuser. How to Use the Feliway Refill Insert the Refill – Screw the refill vial securely into your Feliway Diffuser. Consistent Use: Replace the refill every 3-5 weeks to maintain a calming atmosphere (duration may vary based on room size and ventilation).

eBay